August scbaffee



(No Model.)

A. SCHAPFER.

Method of, and Device for, Connecting Gems.

No. 236,513. Patented Jan. 11,1881.

WITNESSES INVENTOR ATTORNEY NJETERS, FNOTO-LITHDGRAPHER, WASHINGTON u 0 UNITED STATES PATENT OFFICE.

AUGUST SOHAFFER, on NEW YORK, N. Y.

METHOD OF AND DEVICE FOR CONNECTING GEMS.

SPECIFICATION formingpart of Letters Patent No. 236,513, dated January 11, 1881.

Application filed June 21, 1880. (No model.)

To all whom it may concern Be it known that I, AUGUST SCHAFFER, o the city, county, and State of New York, have invented certain new and useful Improvements in Methods of and Devices for Connecting Gems, of which the following is a specification.

The object of this invention is to connect agates and similar stones of natural or artificial color, cameos, and the like in such a manner that the upper stone projects above the surface of the lower stone or table, by which connection a larger variety of combinations can be made from this class of stones, to be used for articles ofjewelry and other purposes.

The invention consists in connecting two agates or other stones by recessing or dovetailing the lower stone or table on its upper surface and the upper stone or step at its bottom surface, inserting into the recess a connecting piece or key of copper, and filling up the small wedge-shaped spaces or cavities between the connecting-key by electro-deposition, so that a reliable metallic connection between the two stones is obtained.

In the accompanying drawings, Figure 1 represents a top view of two agates or other stones connected by my improved method; and Fig. 2 is a vertical transverse section of the same on line as a, Fig. 1.

Similar letters of reference indicate corresponding parts.

In the drawings, A represents the lower stone or table, and B the upper stone or step, cameo, or article to be connected to the former. The stones may be naturally or artificiall y colored and the upper stone be provided with any ornamentation; but it should be smaller than the lower stone or table. The connection between the stones is obtained by forming wedge-shaped recesses in the lower stone or table upon its top surface, and in the upper stone at a point corresponding thereto at its bottom surface, the recesses being preferably of wedge shape. Acounecting stud or key, 0, of copper or other suitable metal, is inserted into both recesses of the stones, the small wed ge-shaped spaces or cavities between the key and the recesses being then filled up by suspending the article in a copper solution and depositing metallic copper therein by the electric current. For this purpose the key is electrically connected with a small copper band or wire, 61, (shown in Fig. 1,) and then suspended in the solution. copper becomes, by its adherence to the key, a part of the same, so that it assumes a double wedge shape, so that it interlocks in a reliable manner with the stones and prevents the separation of the same. The projecting portion of the wire or band a is filed oft after the metal has been deposited, so that there is no indication of the connection of the stones from the outside.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent- 1. The method herein described of connectin g agates and other stones, consisting in formin g wedge-shaped recesses in the adjacent sides of the stones, inserting into the recesses a connecting metallic stud or key, and filling the wedge-shaped spaces around the key by electro-deposition, substantially as set forth.

2. The combination of a lower stone or table and of an upper stone or step, both having wedge-shaped recesses in their adjacent sides, with a metallic connecting stud or key having side projections filling up the recesses, said projections being formed in one piece with the stud or key by electro-deposition, substantially as set forth.

ln testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 18th day of June, 1880.

AUGUST SOHAFFER.

Witnesses:

PAUL GonPEL, CARL KARP.

The deposit of 

